●2.4GHz FHSS4/FHSS3 Spread spectrum system 4ch●Built-in Antenna ●Sanwa Super Response (SSR) support Frequency 2.4GHz FHSS4/FHSS3 Channel 4CH Nominal Input Voltage 3.7V~7.4V Dimensions 18.2x24.4x27.1mm Weight 7.1g Compatible radio M12, EXZES Z, M11X, EXZES X, MT-4S, MT-4, GEMINI X *NOTICE (When Li-Po 2cell Battery, 7.4V is used.)*…